/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraScriptViewModel.h
Gets the currently selected script variables.
[TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FNiagaraObjectSelection](API\Plugins\NiagaraEditor\FNiagaraObjectSelection) > GetVariableSelection()